Optical image capturing system

ABSTRACT

An optical image capturing system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. The first, the second and the third lens elements all have refractive power. The fourth lens element with refractive power has both surfaces being aspheric. The fifth lens element with refractive power has both surfaces being aspheric. The sixth lens element with refractive power has an image-side surface having at least one convex shape at a peripheral region thereof and both surfaces being aspheric. The seventh lens element with refractive power has an image-side surface having at least one convex shape at a peripheral region thereof, wherein both surfaces being aspheric, and at least one surface has at least one inflection point thereon.

RELATED APPLICATIONS

The present application is a continuation of the application Ser. No.16/231,933, filed on Dec. 24, 2018, which is a continuation of theapplication Ser. No. 15/602,092, filed on May 22, 2017, U.S. Pat. No.10,197,773 issued on Feb. 5, 2019, which is a continuation of theapplication Ser. No. 15/226,909, filed on Aug. 2, 2016, U.S. Pat. No.9,690,078 issued on Jun. 27, 2017, which is a continuation of theapplication Ser. No. 14/934,112, filed on Nov. 5, 2015, U.S. Pat. No.9,435,986 issued on Sep. 6, 2016, which is a continuation of theapplication Ser. No. 14/523,950, filed on Oct. 27, 2014, U.S. Pat. No.9,213,168 issued on Dec. 15, 2015, which is a continuation of theapplication Ser. No. 14/287,054, filed on May 25, 2014, U.S. Pat. No.8,902,511 issued on Dec. 2, 2014, which is a continuation of theapplication Ser. No. 14/016,209, filed on Sep. 2, 2013, U.S. Pat. No.8,767,315 issued on Jul. 1, 2014, which is a continuation of theapplication Ser. No. 13/669,445, filed on Nov. 6, 2012, U.S. Pat. No.8,599,495 issued on Dec. 3, 2013, which claims priority under 35 U.S.C.119(e) to Taiwan application serial number 101124430, filed on Jul. 6,2012, the entire contents of which are hereby incorporated herein byreference.

BACKGROUND Technical Field

The present disclosure relates to an optical image capturing system.More particularly, the present invention relates to a miniaturizedoptical image capturing system applicable to electronic products.

Description of Related Art

In recent years, with the popularity of mobile products having camerafunctionalities, a demand for optical system has been increasing. Aphotosensitive sensor of a conventional optical system is typically aCCD (Charge-Coupled Device) or a CMOS (ComplementaryMetal-Oxide-Semiconductor) sensor. As the advanced semiconductormanufacturing technologies have allowed a pixel size of sensors to bereduced and the optical systems have gradually evolved toward a field ofhigher megapixels, there is an increasing demand for better imagequality.

A conventional optical system employed in a portable electronic product,as shown in U.S. Pat. No. 7,869,142, mainly adopts a structure of fourlens elements. Due to the popularity of mobile products with high-endspecifications, such as smart phones and PDAs (Personal DigitalAssistants), requirements of higher megapixels and better image qualityhave increased rapidly. However, the conventional optical systems cannotsatisfy the requirements of high-end optical systems with camerafunctionalities.

A conventional optical image lens assembly with many lens elements isusually too bulky to have its size being miniaturized; therefore, it isnot applicable to portable electronic products with a compact size. Anoptical image lens assembly with five lens elements, such as “ImagingLens Assembly” disclosed in U.S. Pat. No. 8,000,030, lacks good abilityto correct high order aberrations and off-axis aberrations. Moreover,the space arrangement, the distribution of refractive power and thedesign of lens surface are not favorable to have its total track oflength being effectively shortened thereof and it is thereby not easy tohave a compact size with good image quality.

SUMMARY

In one aspect of the present disclosure, an optical image capturingsystem in order from an object side to an image side, includes a firstlens element, a second lens element, a third lens element, a fourth lenselement, a fifth lens element, a sixth lens element and a seventh lenselement. The first lens element has refractive power. The second lenselement has refractive power. The third lens element has refractivepower. The fourth lens element with refractive power has an object-sidesurface and an image-side surface being both aspheric. The fifth lenselement with refractive power has an object-side surface and animage-side surface being both aspheric. The sixth lens element withrefractive power has an image-side surface having at least one convexshape at a peripheral region thereof, wherein an object-side surface andthe image-side surface of the sixth lens element are both aspheric. Theseventh lens element with refractive power has an image-side surfacehaving at least one convex shape at a peripheral region thereof, whereinan object-side surface and the image-side surface of the seventh lenselement are both aspheric, and at least one of the object-side surfaceand the image-side surface of the seventh lens element has at least oneinflection point thereon. The optical image capturing system has a totalof seven lens elements with refractive power, and further comprises astop located closer to the object side than the second lens element,each of the first lens element, the second lens element, the third lenselement, the fourth lens element, the fifth lens element, the sixth lenselement and the seventh lens element is a single and non-cemented lenselement.

In another aspect of the present disclosure, an image capturing deviceincludes the optical image capturing system according to theaforementioned aspect, and an image sensor located on the image side ofthe optical image capturing system.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention can be more fully understood by reading the followingdetailed description of the embodiment, with reference made to theaccompanying drawings as follows:

FIG. 1 is a schematic view of an optical image capturing systemaccording to the 1st embodiment of the present disclosure;

FIG. 2 shows, in order from left to right, spherical aberration curves,astigmatic field curves and a distortion curve of the optical imagecapturing system according to the 1st embodiment;

FIG. 3 is a schematic view of an optical image capturing systemaccording to the 2nd embodiment of the present disclosure;

FIG. 4 shows, in order from left to right, spherical aberration curves,astigmatic field curves and a distortion curve of the optical imagecapturing system according to the 2nd embodiment;

FIG. 5 is a schematic view of an optical image capturing systemaccording to the 3rd embodiment of the present disclosure;

FIG. 6 shows, in order from left to right, spherical aberration curves,astigmatic field curves and a distortion curve of the optical imagecapturing system according to the 3rd embodiment;

FIG. 7 is a schematic view of an optical image capturing systemaccording to the 4th embodiment of the present disclosure;

FIG. 8 shows, in order from left to right, spherical aberration curves,astigmatic field curves and a distortion curve of the optical imagecapturing system according to the 4th embodiment;

FIG. 9 is a schematic view of an optical image capturing systemaccording to the 5th embodiment of the present disclosure;

FIG. 10 shows, in order from left to right, spherical aberration curves,astigmatic field curves and a distortion curve of the optical imagecapturing system according to the 5th embodiment;

FIG. 11 is a schematic view of an optical image capturing systemaccording to the 6th embodiment of the present disclosure;

FIG. 12 shows, in order from left to right, spherical aberration curves,astigmatic field curves and a distortion curve of the optical imagecapturing system according to the 6th embodiment;

FIG. 13 is a schematic view of an optical image capturing systemaccording to the 7th embodiment of the present disclosure;

FIG. 14 shows, in order from left to right, spherical aberration curves,astigmatic field curves and a distortion curve of the optical imagecapturing system according to the 7th embodiment;

FIG. 15 is a schematic view of an optical image capturing systemaccording to the 8th embodiment of the present disclosure;

FIG. 16 shows, in order from left to right, spherical aberration curves,astigmatic field curves and a distortion curve of the optical imagecapturing system according to the 8th embodiment;

FIG. 17 is a schematic view of an optical image capturing systemaccording to the 9th embodiment of the present disclosure;

FIG. 18 shows, in order from left to right, spherical aberration curves,astigmatic field curves and a distortion curve of the optical imagecapturing system according to the 9th embodiment;

FIG. 19 is a schematic view of an optical image capturing systemaccording to the 10th embodiment of the present disclosure;

FIG. 20 shows, in order from left to right, spherical aberration curves,astigmatic field curves and a distortion curve of the optical imagecapturing system according to the 10th embodiment;

FIG. 21 is a schematic parameter of the fifth lens element of theoptical image capturing system according to the 1st embodiment of FIG.1; and

FIG. 22 is a schematic parameter of the seventh lens element of theoptical image capturing system according to the 1st embodiment of FIG.1.

DETAILED DESCRIPTION

An optical image capturing system in order from an object side to animage side, includes a first lens element, a second lens element, athird lens element, a fourth lens element, a fifth lens element, a sixthlens element and a seventh lens element. The optical image capturingsystem further includes an image sensor disposed on an image plane ofthe optical image capturing system.

Each of the first lens element, the second lens element, the third lenselement, the fourth lens element, the fifth lens element, the sixth lenselement and the seventh lens element is a single and non-cemented lenselement. That is, any two lens elements adjacent to each other are notcemented (such as the image-side surface of the first lens element andan object-side surface of the second lens element), and there is an airspace between the two lens elements. That is, an air distance betweentwo adjacent surfaces of any two adjacent lens elements. Since themanufacturing process of the cemented lenses is more complex than thenon-cemented lenses. In particular, a second surface of one lens and afirst surface of the following lens need to have accurate curvature toensure these two lens elements will be highly cemented. However, duringthe cementing process, those two lens elements might not be highlycemented due to displacement and it is thereby not favorable for theimage quality of the optical image capturing system. Therefore, theoptical image capturing system of the present disclosure provides sevensingle and non-cemented lens elements for improving upon the problemgenerated by the cemented lens elements.

The first lens element with positive refractive power has a convexobject-side surface and a concave image-side surface, so that a totaltrack length of the optical image capturing system can be reduced byadjusting the positive refractive power of the first lens element.

The second lens element has a convex object-side surface and a concaveimage-side surface so that an astigmatic of the optical image capturingsystem can be corrected.

At least one of an object-side surface and an image-side surface offourth lens element can include at least one inflection point,respectively.

The fifth lens element with negative refractive power can correct anaberration of the optical image capturing system so as to improve imagequality. The fifth lens element can have a concave object-side surfaceand a convex image-side surface, so that the fifth lens element caneffectively correct the astigmatism of the optical image capturingsystem.

The sixth lens element with positive refractive power has an object-sidesurface and an image-side surface which are both convex, so that an highorder aberration of the optical image capturing system can be correctedso as to enhance a resolving power of the optical image capturing systemfor better image quality. Furthermore, the object-side surface of thesixth lens element changes from convex at a paraxial region to concaveat a peripheral region so as to maintain a relative illumination of theperiphery of images.

The seventh lens element with negative refractive power has anobject-side surface and an image-side surface which are both concave, sothat a principal point of the optical image capturing system can bepositioned away from the image plane for reducing a back focal lengththereof so as to further reduce the total track length of the opticalimage capturing system and maintain a compact size thereof. Moreover,the image-side surface of the seventh lens element changes from concaveat a paraxial region to convex at a peripheral region, and the seventhlens element has at least one inflection point formed on the image-sidesurface thereof. Therefore, an incident angle of an off-axis field ontothe image sensor can be effectively minimized, and preferably,aberrations of the off-axis field can be corrected.

When a curvature radius of the object-side surface of the seventh lenselement is R13, and a curvature radius of the image-side surface of theseventh lens element is R14, the following relationship is satisfied:

−5.0<R14/R13<1.0.

By such an arrangement, the configuration of the surface curvature ofthe seventh lens element is favorable for the disposition of the otherlens elements, the arrangement of the aspheric surface of the other lenselements and the arrangement of the inflection point to correct the highorder aberration and the off-axis aberrations, for example, the comaticaberration and the astigmatism, and to reduce the angle at which theincident light projects onto the image sensor from the off-axis fieldunder a certain total track length and to realize an optical imagecapturing system with a better image quality and a compact size.

Preferably, the optical image capturing system further satisfies thefollowing relationship:

−2.0<R14/R13<0.5.

When a focal length of the optical image capturing system is f, a focallength of the sixth lens element is f6, and a focal length of theseventh lens element is f7, the following relationship is satisfied:

1.8<|f/f6|+|f/f7|<6.0.

By properly arranging the focal lengths of the sixth lens element andthe seven lens element so as to form a positive-negative telephotostructure, the total track length of the optical image capturing systemcan be effectively reduced. Preferably, the optical image capturingsystem further satisfies the following relationship:

2.3<|f/f6|+|f/f7|<5.0.

When a distance in parallel with an optical axis from a maximumeffective diameter position on the image-side surface of the fifth lenselement to an axial vertex on the image-side surface of the fifth lenselement is SAG52, and a central thickness of the fifth lens element isCT5, the following relationship is satisfied:

−0.7 mm<SAG52+CT5<−0.1 mm.

Accordingly, it is favorable for manufacturing and assembling the lenselements by arranging a proper surface curvature of the image-sidesurface of the fifth lens element and a proper thickness of the fifthlens element.

When an Abbe number of the first lens element is V1, and an Abbe numberof the second lens element is V2, the following relationship issatisfied:

28<V1−V2<42.

Accordingly, a chromatic aberration of the optical image capturingsystem can be corrected.

When the focal length of the optical image capturing system is f, and anaxial distance from the object-side surface of the first lens element tothe image-side surface of the seventh lens element is Td, the followingrelationship is satisfied:

0.50<Td/f<1.35.

Therefore, the total track length of the optical image capturing systemcan be effectively reduced so as to keep the optical image capturingsystem compact.

Preferably, the optical image capturing system further satisfies thefollowing relationship:

0.80<Td/f<1.25.

When the focal length of the optical image capturing system is f, afocal length of the third lens element is f3, and a focal length of thefourth lens element is f4, the following relationship is satisfied:

|f/f3|+|f/f4|<1.0.

Therefore, the focal lengths of the third lens element and the fourthlens element are favorable for reducing the sensitivity of the opticalimage capturing system.

When the focal length of the optical image capturing system is f, andthe focal length of the seventh lens element is f7, the followingrelationship is satisfied:

−3.0<f/f7<−1.3.

Consequently, the refractive power of the seventh lens element will befavorable for further reducing the back focal length of the opticalimage capturing system so as to reduce the total track length of theoptical image capturing system.

When a minimum central thickness of a lens element among all lenselements of the optical image capturing system is CT min, the followingrelationship is satisfied:

0.10 mm<CT min<0.30 mm.

Therefore, by adjusting the thickness of the lens elements, it isfavorable for manufacturing the lens elements, and preventing theover-thin lens elements from being formed abnormally so as to increasethe yield rate of the lens elements.

When the focal length of the optical image capturing system is f, and avertical distance from a critical point on the image-side surface of theseventh lens element to an axial vertex on the image-side surface of theseventh lens element is Yc72, the following relationship is satisfied:

0.1<Yc72/f<0.9.

Accordingly, the angle at which the incident light projects onto theimage sensor from the off-axis field can be effectively reduced toimprove the image quality.

When a maximal field of view of the optical image capturing system isFOV, the following relationship is satisfied:

72 degrees<FOV<95 degrees.

Accordingly, a larger field of view can be provided so as to obtain therequired image scope and to avoid the image from distortion.

When the curvature radius of the image-side surface of the seventh lenselement is R14, and the focal length of the optical image capturingsystem is f, and the following relationship is satisfied:

0.1<R14/f<1.0.

Therefore, the curvature radius of the image-side surface of the seventhlens element will be favorable for the principal point of the opticalimage capturing system being positioned away from the image plane sothat the back focal length thereof can be reduced and the compact sizethereof can be maintained.

When a maximum image height of the optical image capturing system isImgH, and an axial distance between the object-side surface of the firstlens element and the image plane is TTL, the following relationship issatisfied:

1.00<TTL/ImgH<1.70.

Thus, the total track length of the optical image capturing system canbe reduced so as to maintain the compact size thereof, and suitable forapplying to the compact portable electronic products.

In the optical image capturing system of the disclosure, the lenselements can be made of plastic or glass material. When the lenselements are made of glass material, the distribution of the refractivepower of the optical image capturing system can be more flexible todesign. When the lens elements are made of plastic material, themanufacturing cost thereof can be decreased.

Furthermore, surfaces of each lens element can be arranged to beaspheric, because the aspheric surface of the lens element is easy toform a shape other than spherical surface so as to have morecontrollable variables for eliminating the aberration thereof, and tofurther decrease the required number of the lens elements. Thus, thetotal track length of the optical image capturing system can beeffectively reduced.

In the optical image capturing system of the disclosure, each of anobject-side surface and an image-side surface of every lens element hasa paraxial region and a peripheral region. The paraxial region refers tothe region of the surface where light rays travel close to an opticalaxis and the peripheral region refers to the region of the surface wherelight rays travel away from the optical axis. Particularly, when a lenselement has a convex surface, it indicates that the paraxial region ofthe surface is convex; and when the lens element has a concave surface,it indicates that the paraxial region of the surface is concave.

According to the optical image capturing system of the presentdisclosure, a critical point is a non-axial point of the lens surfacewhere its tangent is perpendicular to the optical axis.

In the optical image capturing system of the disclosure, the opticalimage capturing system can include at least one stop, such as anaperture stop, a glare stop or a field stop. Said glare stop or saidfield stop is for eliminating the stray light and thereby improving theimage resolution thereof.

In the present optical image capturing system, an aperture stop can beconfigured as a front stop or a middle stop. A front stop disposedbetween an object and a first lens element can provide a longer distancebetween an exit pupil of the system and an image plane and whichimproves the image-sensing efficiency of an image sensor. A middle stopdisposed between the first lens element and an image plane is favorablefor enlarging the field of view of the system and thereby provides awider field of view for the same.

The optical image capturing system do not only equip with superioraberration correction functionality but also equip with superior imagequality that can be applied to many electronic image systems, such asthree-dimensional image capturing systems, digital cameras, portabledevices or digital tablets.

According to the above description of the present disclosure, thefollowing 1st-10th specific embodiments are provided for furtherexplanation.

1st Embodiment

FIG. 1 is a schematic view of an optical image capturing systemaccording to the 1st embodiment of the present disclosure. FIG. 2 shows,in order from left to right, spherical aberration curves, astigmaticfield curves and a distortion curve of the optical image capturingsystem according to the 1st embodiment.

In FIG. 1, the optical image capturing system includes, in order from anobject side to an image side, an aperture stop 100, a first lens element110, a second lens element 120, a third lens element 130, a fourth lenselement 140, a fifth lens element 150, a sixth lens element 160, aseventh lens element 170, an IR-cut filter 190, an image plane 180 andan image sensor 181.

The first lens element 110 with positive refractive power has a convexobject-side surface 111 and a concave image-side surface 112, which areboth aspheric, and the first lens element 110 is made of plasticmaterial.

The second lens element 120 with negative refractive power has a convexobject-side surface 121 and a concave image-side surface 122, which areboth aspheric, and the second lens element 120 is made of plasticmaterial.

The third lens element 130 with positive refractive power has a convexobject-side surface 131 and a concave image-side surface 132, which areboth aspheric, and the third lens element 130 is made of plasticmaterial.

The fourth lens element 140 with positive refractive power has a convexobject-side surface 141 and a convex image-side surface 142, which areboth aspheric, and the fourth lens element 140 is made of plasticmaterial. Furthermore, the object-side surface 141 of the fourth lenselement 140 includes at least one inflection point.

The fifth lens element 150 with negative refractive power has a concaveobject-side surface 151 and a convex image-side surface 152, which areboth aspheric, and the fifth lens element 150 is made of plasticmaterial.

The sixth lens element 160 with positive refractive power has a convexobject-side surface 161 and a convex image-side surface 162 which areboth aspheric, and the sixth lens element 160 is made of plasticmaterial. The object-side surface 161 changes from convex at a paraxialregion to concave at a peripheral region.

The seventh lens element 170 with negative refractive power has aconcave object-side surface 171 and a concave image-side surface 172which are both aspheric, and the seventh lens element 170 is made ofplastic material. The image-side surface 172 changes from concave at aparaxial region to convex at a peripheral region. Furthermore, theimage-side surface 172 of the seventh lens element 170 includes at leastone inflection point.

The IR-cut filter 190 is made of glass and located between the seventhlens element 170 and the image plane 180, and will not affect the focallength of the optical image capturing system.

The equation of the aspheric surface profiles of the aforementioned lenselements of the 1st embodiment is expressed as follows:

${X(Y)} = {{\left( {Y^{2}/R} \right)/\left( {1 + {{sqrt}\left( {1 - {\left( {1 + k} \right) \times \left( {Y/R} \right)^{2}}} \right)}} \right)} + {\sum\limits_{i}{({Ai}) \times \left( Y^{i} \right)}}}$

-   -   where:    -   X is the relative distance between a point on the aspheric        surface spaced at a distance Y from the optical axis and the        tangential plane at the aspheric surface vertex;    -   Y is the distance from the point on the curve of the aspheric        surface to the optical axis;    -   R is the curvature radius of the lens elements;    -   k is the conic coefficient; and    -   Ai is the i-th aspheric coefficient.

In the optical image capturing system according to the 1st embodiment,when a focal length of the optical image capturing system is f, anf-number of the optical image capturing system is Fno, and a half of themaximal field of view of the optical image capturing system is HFOV,these parameters have the following values:

-   -   f=4.01 mm;    -   Fno=2.00; and    -   HFOV=44.3 degrees.

In the optical image capturing system according to the 1st embodiment,when an Abbe number of the first lens element 110 is V1, and an Abbenumber of the second lens element 120 is V2, the following relationshipis satisfied:

V1−V2=32.6.

In the optical image capturing system according to the 1st embodiment,when a minimum central thickness of a lens element among all lenselements of the optical image capturing system is CT min, the followingrelationship is satisfied:

CT min=0.230 mm.

In the optical image capturing system according to the 1st embodiment,when a curvature radius of the object-side surface 171 of the seventhlens element 170 is R13, a curvature radius of the image-side surface172 of the seventh lens element 170 is R14, and the focal length of theoptical image capturing system is f, the following relationships aresatisfied:

R14/R13=−0.03; and

R14/f=0.27.

In the optical image capturing system according to the 1st embodiment,when the focal length of the optical image capturing system is f, afocal length of the third lens element 130 is f3, a focal length of thefourth lens element 140 is f4, a focal length of the sixth lens element160 is f6, and a focal length of the seventh lens element 170 is f7, thefollowing relationships are satisfied:

|f/f3|+|f/f4|=0.67;

|f/f6|+|f/f7|=4.17; and

f/f7=−2.07.

Reference is now made to FIG. 21 which is a schematic parameter of thefifth lens element 150 of the optical image capturing system accordingto the 1st embodiment of FIG. 1.

In FIG. 21, when a distance in parallel with the optical axis from amaximum effective diameter position on the image-side surface 152 of thefifth lens element 150 to an axial vertex on the image-side surface 152of the fifth lens element 150 is SAG52, and a central thickness of thefifth lens element 150 is CT5, the following relationship is satisfied:

SAG52+CT5=−0.19 mm.

Please refer to FIG. 22; FIG. 22 is a schematic parameter of the seventhlens element 170 of the optical image capturing system according to the1st embodiment of FIG. 1.

In FIG. 22, a vertical distance from a critical point on the image-sidesurface 172 of the seventh lens element 170 to an axial vertex on theimage-side surface 172 of the seventh lens element 170 is Yc72, thefocal length of the optical image capturing system is f, and an axialdistance from the object-side surface 111 of the first lens element 110to the image-side surface 172 of the seventh lens element 170 is Td, thefollowing relationships are satisfied:

Yc72/f=0.49; and

Td/f=1.11.

In the optical image capturing system according to the 1st embodiment,when the maximal field of view of the optical image capturing system isFOV, the following relationship is satisfied:

FOV=88.6 degrees.

In the optical image capturing system according to the 1st embodiment,when a maximum image height of the optical image capturing system isImgH which here is half of the diagonal length of the photosensitivearea of the image sensor 181 on the image plane 180, and an axialdistance between the object-side surface 111 of the first lens element110 and an image plane 180 is TTL, the following relationship issatisfied:

TTL/ImgH=1.43.

Refer to Table 1 and Table 2 as follows. The detailed optical data ofthe 1st embodiment are shown in Table 1 and the aspheric surface dataare shown in Table 2 below.

TABLE 1 1st Embodiment f = 4.01 mm, Fno = 2.00, HFOV = 44.3 deg. SurfaceFocal # Curvature Radius Thickness Material Index Abbe # length 0 ObjectPlano Infinity 1 Ape. Stop Plano −0.232 2 Lens 1   2.434710 (ASP) 0.432Plastic 1.544 55.9 7.09 3   6.184400 (ASP) 0.129 4 Lens 2   2.617130(ASP) 0.230 Plastic 1.640 23.3 −18.39 5   2.067550 (ASP) 0.227 6 Lens 3  8.427200 (ASP) 0.408 Plastic 1.544 55.9 18.55 7   50.097500 (ASP) 0.148 8 Lens 4   8.616300 (ASP) 0.475 Plastic 1.544 55.9 8.83 9−10.657500 (ASP)  0.369 10 Lens 5 −1.135390 (ASP) 0.260 Plastic 1.64023.3 −5.23 11 −1.871900 (ASP) 0.046 12 Lens 6   5.095500 (ASP) 0.960Plastic 1.544 55.9 1.92 13 −1.224510 (ASP) 0.260 14 Lens 7 −39.871000(ASP)  0.519 Plastic 1.544 55.9 −1.93 15   1.086250 (ASP) 0.800 16IR-cut filter Plano 0.200 Glass 1.517 64.2 — 17 Plano 0.333 18 ImagePlano — Note: Reference wavelength (d-line) is 587.6 nm.

TABLE 2 Aspheric Coefficients Surface # 2 3 4 5 6 k=   8.27120E−01  4.62437E+00 −1.13191E+01 −6.38616E+00   0.00000E+00 A4= −1.74532E−03−5.83063E−02 −1.16345E−01 −6.30254E−02 −3.22408E−03 A6=   1.66444E−02  9.03971E−02   1.17622E−01   5.70756E−02 −2.88888E−03 A8=   4.28968E−03−3.60302E−02 −7.66726E−02 −2.83491E−02   4.75917E−04 A10= −3.07413E−02−1.36439E−02   7.44823E−03   6.65499E−03 −2.13932E−03 A12=   3.78197E−02  1.65731E−02   1.44225E−02 −8.04619E−03 A14= −1.23654E−02 −1.71803E−03−1.00255E−02   2.81404E−03 Surface # 7 8 9 10 11 k=   0.00000E+00−1.41923E+01   3.00000E+00 −1.91162E+00 −2.91712E+00 A4= −2.22211E−02−4.89368E−02 −2.77627E−02   1.27682E−01   4.41976E−02 A6=   1.62467E−03−9.79475E−03 −2.66788E−02 −1.56846E−01 −4.96818E−02 A8= −2.71793E−03  8.35766E−03   4.86057E−03   9.93741E−02   2.88045E−02 A10=−1.57662E−03 −3.63072E−03   7.65106E−05 −4.10875E−02 −1.07348E−02 A12=−2.59001E−03 −1.00897E−04   1.33686E−02   2.93622E−03 A14=   1.02823E−03  1.39343E−04 −2.16846E−03 −3.46573E−04 Surface # 12 13 14 15 k=  1.52786E+00 −5.57551E+00 −1.12826E+01 −6.42535E+00 A4= −6.23424E−02−1.65595E−02 −5.43119E−02 −2.80684E−02 A6=   2.96152E−02   1.11540E−04  6.52054E−03   4.82354E−03 A8= −8.05261E−03   9.36251E−03 −1.28046E−04−6.50633E−04 A10=   7.04579E−04 −3.77558E−03   1.85706E−05   5.03266E−05A12=   2.48481E−05   5.75870E−04   1.46128E−06 −2.63079E−06 A14=−5.10512E−06 −3.18169E−05 −5.41596E−07   7.71151E−08

In Table 1, the curvature radius, the thickness and the focal length areshown in millimeters (mm). Surface numbers 0-18 represent the surfacessequentially arranged from the object-side to the image-side along theoptical axis. In Table 2, k represents the conic coefficient of theequation of the aspheric surface profiles. A1-A14 represent the asphericcoefficients ranging from the 1st order to the 14th order. The tablespresented below for each embodiment are the corresponding schematicparameter and aberration curves, and the definitions of the tables arethe same as Table 1 and Table 2 of the 1^(st) embodiment. Therefore, anexplanation in this regard will not be provided again.

2nd Embodiment

FIG. 3 is a schematic view of an optical image capturing systemaccording to the 2nd embodiment of the present disclosure. FIG. 4 shows,in order from left to right, spherical aberration curves, astigmaticfield curves and a distortion curve of the optical image capturingsystem according to the 2nd embodiment.

In FIG. 3, the optical image capturing system includes, in order from anobject side to an image side, a first lens element 210, an aperture stop200, a second lens element 220, a third lens element 230, a fourth lenselement 240, a fifth lens element 250, a sixth lens element 260, aseventh lens element 270, an IR-cut filter 290, an image plane 280 andan image sensor 281.

The first lens element 210 with positive refractive power has a convexobject-side surface 211 and a concave image-side surface 212, which areboth aspheric, and the first lens element 210 is made of plasticmaterial.

The second lens element 220 with negative refractive power has a convexobject-side surface 221 and a concave image-side surface 222, which areboth aspheric, and the second lens element 220 is made of plasticmaterial.

The third lens element 230 with negative refractive power has a concaveobject-side surface 231 and a concave image-side surface 232, which areboth aspheric, and the third lens element 230 is made of plasticmaterial.

The fourth lens element 240 with positive refractive power has a convexobject-side surface 241 and a convex image-side surface 242, which areboth aspheric, and the fourth lens element 240 is made of plasticmaterial. Furthermore, the object-side surface 241 of the fourth lenselement 240 includes at least one inflection point.

The fifth lens element 250 with negative refractive power has a concaveobject-side surface 251 and a convex image-side surface 252, which areboth aspheric and the fifth lens element 250 is made of plasticmaterial.

The sixth lens element 260 with positive refractive power has a convexobject-side surface 261 and a convex image-side surface 262 which areboth aspheric, and the sixth lens element 260 is made of plasticmaterial. The object-side surface 261 changes from convex at a paraxialregion to concave at a peripheral region.

The seventh lens element 270 with negative refractive power has aconcave object-side surface 271 and a concave image-side surface 272which are both aspheric, and the seventh lens element 270 is made ofplastic material. The image-side surface 272 changes from concave at aparaxial region to convex at a peripheral region. Furthermore, theimage-side surface 272 of the seventh lens element 270 includes at leastone inflection point.

The IR-cut filter 290 is made of glass and located between the seventhlens element 270 and the image plane 280, and will not affect the focallength of the optical image capturing system.

The detailed optical data of the 2nd embodiment are shown in Table 3 andthe aspheric surface data are shown in Table 4 below.

TABLE 3 2nd Embodiment f = 4.69 mm, Fno = 2.00, HFOV = 39.9 deg. SurfaceFocal # Curvature Radius Thickness Material Index Abbe # length 0 ObjectPlano Infinity 1 Lens 1 2.338420 (ASP) 0.661 Plastic 1.544 55.9 5.34 210.750800 (ASP) 0.040 3 Ape. Stop Plano 0.016 4 Lens 2 7.445700 (ASP)0.240 Plastic 1.640 23.3 −17.26 5 4.391600 (ASP) 0.445 6 Lens 3−21.710900 (ASP) 0.381 Plastic 1.544 55.9 −39.74 7 5361.416200 (ASP)0.147 8 Lens 4 5.575000 (ASP) 0.529 Plastic 1.544 55.9 7.69 9 −16.175800(ASP) 0.515 10 Lens 5 −1.284340 (ASP) 0.300 Plastic 1.650 21.4 −8.44 11−1.831180 (ASP) 0.035 12 Lens 6 4.475500 (ASP) 1.150 Plastic 1.544 55.92.49 13 −1.763930 (ASP) 0.325 14 Lens 7 −3.393300 (ASP) 0.420 Plastic1.544 55.9 −2.12 15 1.819780 (ASP) 0.700 16 IR-cut filter Plano 0.200Glass 1.517 64.2 — 17 Plano 0.272 18 Image Plano — Note: Referencewavelength (d-line) is 587.6 nm.

TABLE 4 Aspheric Coefficients Surface # 1 2 4 5 6 k=   9.80773E−01−1.92188E+01   8.90606E+00 −1.79159E+00   0.00000E+00 A4= −2.18593E−03−6.46057E−02 −1.10653E−01 −4.86404E−02 −3.93493E−02 A6= −1.54070E−02  7.63918E−02   1.13450E−01   5.13025E−02 −1.80331E−02 A8=   3.05338E−02−4.29638E−02 −6.80130E−02 −3.24642E−02   4.67850E−03 A10= −3.36226E−02−2.10201E−03   8.54602E−03   1.32076E−02 −9.93176E−03 A12=   1.79152E−02  1.22516E−02   1.21194E−02 −2.83179E−03 A14= −4.00474E−03 −3.93519E−03−4.15964E−03   1.09867E−03 Surface # 7 8 9 10 11 k=   0.00000E+00−5.00000E+01 −1.99836E+01 −2.35110E+00 −5.56653E+00 A4= −9.08185E−02−4.85174E−02 −2.66060E−02   1.14859E−01   2.33258E−02 A6=   1.74613E−02−1.31630E−02 −3.07938E−02 −1.72783E−01 −5.37931E−02 A8= −1.60883E−02  5.98634E−03   6.93109E−03   9.45890E−02   2.74189E−02 A10=  1.15200E−03 −1.00384E−03   7.89597E−04 −4.12706E−02 −1.10956E−02 A12=−1.22616E−03 −3.12044E−04   1.37733E−02   2.94183E−03 A14=   5.23056E−04  1.91696E−05 −1.93858E−03 −2.89735E−04 Surface # 12 13 14 15 k=  1.11152E−01 −5.90226E+00 −3.47383E+00 −9.89411E+00 A4= −6.66847E−02−2.36853E−02 −5.03202E−02 −2.43023E−02 A6=   2.67368E−02 −4.13868E−03  7.31438E−03   4.35401E−03 A8= −7.42114E−03   9.41497E−03 −1.79551E−04−6.10939E−04 A10=   5.58018E−04 −3.69867E−03   3.41602E−06   5.28792E−05A12= −1.77933E−05   5.80183E−04   1.46128E−06 −2.74531E−06 A14=  5.57785E−06 −3.25579E−05 −3.73207E−07   6.39095E−08

In the 2nd embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of f, Fno, HFOV, V1, V2, CT min, R13,R14, f3, f4, f6, f7, SAG52, CT5, Yc72, Td, FOV, TTL and ImgH are thesame as those stated in the 1st embodiment with corresponding values forthe 2nd embodiment, so an explanation in this regard will not beprovided again.

Moreover, these parameters can be calculated from Table 3 and Table 4 asthe following values and satisfy the following relationships:

2nd Embodiment f (mm) 4.69 |f/f6| + |f/f7| 4.10 Fno 2.00 f/f7 −2.22 HFOV(Deg.) 39.9 SAG52 + CT5 (mm) −0.44 V1-V2 32.6 Yc72/f 0.40 CTmin (mm)0.240 Td/f 1.11 R14/R13 −0.54 FOV (Deg.) 79.8 R14/f 0.39 TTL/ImgH 1.58|f/f3| + |f/f4| 0.73

3rd Embodiment

FIG. 5 is a schematic view of an optical image capturing systemaccording to the 3rd embodiment of the present disclosure. FIG. 6 shows,in order from left to right, spherical aberration curves, astigmaticfield curves and a distortion curve of the optical image capturingsystem according to the 3rd embodiment.

In FIG. 5, the optical image capturing system includes, in order from anobject side to an image side, an aperture stop 300, a first lens element310, a second lens element 320, a third lens element 330, a fourth lenselement 340, a fifth lens element 350, a sixth lens element 360, aseventh lens element 370, an IR-cut filter 390, an image plane 380 andan image sensor 381.

The first lens element 310 with positive refractive power has a convexobject-side surface 311 and a concave image-side surface 312, which areboth aspheric, and the first lens element 310 is made of plasticmaterial.

The second lens element 320 with negative refractive power has a convexobject-side surface 321 and a concave image-side surface 322, which areboth aspheric, and the second lens element 320 is made of plasticmaterial.

The third lens element 330 with negative refractive power has a convexobject-side surface 331 and a concave image-side surface 332, which areboth aspheric, and the third lens element 330 is made of plasticmaterial.

The fourth lens element 340 with positive refractive power has a convexobject-side surface 341 and a concave image-side surface 342, which areboth aspheric, and the fourth lens element 340 is made of plasticmaterial. Furthermore, the fourth lens element 340 has at least oneinflection point.

The fifth lens element 350 with negative refractive power has a concaveobject-side surface 351 and a convex image-side surface 352, which areboth aspheric, and the fifth lens element 350 is made of plasticmaterial.

The sixth lens element 360 with positive refractive power has a convexobject-side surface 361 and a convex image-side surface 362 which areboth aspheric, and the object-side surface 361 changes from convex at aparaxial region to concave at a peripheral region. The sixth lenselement 360 is made of plastic material.

The seventh lens element 370 with negative refractive power has a convexobject-side surface 371 and a concave image-side surface 372 which areboth aspheric, and the seventh lens element 370 is made of plasticmaterial. The image-side surface 372 changes from concave at a paraxialregion to convex at a peripheral region. Furthermore, the image-sidesurface 372 of the seventh lens element 370 includes at least oneinflection point.

The IR-cut filter 390 is made of glass, and located between the seventhlens element 370 and the image plane 380, and will not affect the focallength of the optical image capturing system.

The detailed optical data of the 3rd embodiment are shown in Table 5 andthe aspheric surface data are shown in Table 6 below.

TABLE 5 3rd Embodiment f = 5.20 mm, Fno = 2.20, HFOV = 40.3 deg. SurfaceFocal # Curvature Radius Thickness Material Index Abbe # length 0 ObjectPlano Infinity 1 Ape. Stop Plano −0.247 2 Lens 1  2.767090 (ASP) 0.539Plastic 1.544 55.9 6.38 3 12.665200 (ASP) 0.099 4 Lens 2  5.044800 (ASP)0.270 Plastic 1.634 23.8 −15.43 5  3.259300 (ASP) 0.368 6 Lens 310.920300 (ASP) 0.462 Plastic 1.544 55.9 −34.51 7  6.802200 (ASP) 0.0858 Lens 4  3.989400 (ASP) 0.419 Plastic 1.544 55.9 7.64 9 96.088900 (ASP)0.646 10 Lens 5  −2.064730 (ASP)   0.350 Plastic 1.634 23.8 −8.46 11 −3.577300 (ASP)   0.070 12 Lens 6 10.886400 (ASP) 1.152 Plastic 1.53556.3 2.85 13  −1.703910 (ASP)   0.097 14 Lens 7 15.384600 (ASP) 0.923Plastic 1.535 56.3 −2.80 15  1.336710 (ASP) 0.900 16 IR-cut filter Plano0.300 Glass 1.517 64.2 — 17 Plano 0.422 18 Image Plano — Note: Referencewavelength (d-line) is 587.6 nm.

TABLE 6 Aspheric Coefficients Surface # 2 3 4 5 6 k=   3.52553E−01−3.37368E+01 −9.47575E+00 −6.02858E+00   3.00000E+00 A4= −1.85103E−03−4.12408E−02 −8.08093E−02 −4.19419E−02 −9.49326E−03 A6= −3.40118E−03  4.54419E−02   6.96078E−02   3.07246E−02 −1.02428E−02 A8=   7.83761E−03−2.38616E−02 −3.13092E−02 −1.31529E−02   1.38652E−03 A10= −1.11780E−02−2.36325E−03   5.29695E−04   2.75455E−03 −1.05695E−03 A12=   7.49400E−03  7.59632E−03   5.01418E−03 −1.11157E−03 A14= −2.25623E−03 −3.29843E−03−2.22181E−03   2.12214E−04 Surface # 7 8 9 10 11 k= −6.24200E−01−1.60325E+01 −2.00000E+01 −1.50067E+00 −8.18413E+00 A4= −4.44571E−02−2.44682E−02 −1.02379E−02   8.48765E−02   2.22208E−02 A6=   3.51367E−03−1.31705E−02 −2.07363E−02 −8.98396E−02 −3.01459E−02 A8= −3.87828E−03  3.00348E−03   3.71865E−03   4.18718E−02   1.25384E−02 A10=−3.59950E−04 −6.35328E−04   2.26563E−04 −1.47834E−02 −3.88355E−03 A12=−4.41456E−04 −4.60637E−05   3.82222E−03   8.20642E−04 A14=   1.91129E−04  5.60135E−05 −4.33119E−04 −6.93937E−05 Surface # 12 13 14 15 k=−1.55961E+01 −5.41368E+00 −1.00000E+00 −4.99510E+00 A4= −3.68193E−02−2.75200E−02 −5.52252E−02 −2.04338E−02 A6=   1.63940E−02   1.17221E−03  8.08138E−03   3.00855E−03 A8= −4.13324E−03   4.36791E−03 −2.17936E−04−3.08074E−04 A10=   3.21097E−04 −1.34050E−03 −2.60573E−05   1.95617E−05A12=   1.44523E−05   1.57879E−04 −8.43969E−07 −7.52512E−07 A14=−2.23880E−06 −7.06951E−06   1.80932E−07   1.29525E−08

In the 3rd embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of f, Fno, HFOV, V1, V2, CT min, R13,R14, f3, f4, f6, f7, SAG52, CT5, Yc72, Td, FOV, TTL and ImgH are thesame as those stated in the 1st embodiment with corresponding values forthe 3rd embodiment, so an explanation in this regard will not beprovided again.

Moreover, these parameters can be calculated from Table 5 and Table 6 asthe following values and satisfy the following relationships:

3rd Embodiment f (mm) 5.20 |f/f6| + |f/f7| 3.68 Fno 2.20 f/f7 −1.85 HFOV(deg.) 40.3 SAG52 + CT5 (mm) −0.16 V1-V2 32.1 Yc72/f 0.49 CTmin (mm)0.270 Td/f 1.05 R14/R13 0.09 FOV (deg.) 80.6 R14/f 0.26 TTL/ImgH 1.56|f/f3| + |f/f4| 0.83

4th Embodiment

FIG. 7 is a schematic view of an optical image capturing systemaccording to the 4th embodiment of the present disclosure. FIG. 8 shows,in order from left to right, spherical aberration curves, astigmaticfield curves and a distortion curve of the optical image capturingsystem according to the 4th embodiment.

In FIG. 7, the optical image capturing system includes, in order from anobject side to an image side, a first lens element 410, a second lenselement 420, an aperture stop 400, a third lens element 430, a fourthlens element 440, a fifth lens element 450, a sixth lens element 460, aseventh lens element 470, an IR-cut filter 490, an image plane 480 andan image sensor 481.

The first lens element 410 with positive refractive power has a convexobject-side surface 411 and a concave image-side surface 412, which areboth aspheric, and the first lens element 410 is made of plasticmaterial.

The second lens element 420 with negative refractive power has a convexobject-side surface 421 and a concave image-side surface 422, which areboth aspheric, and the second lens element 420 is made of plasticmaterial.

The third lens element 430 with negative refractive power has a concaveobject-side surface 431 and a convex image-side surface 432, which areboth aspheric, and the third lens element 430 is made of plasticmaterial.

The fourth lens element 440 with positive refractive power has a convexobject-side surface 441 and a convex image-side surface 442, which areboth aspheric, and the fourth lens element 440 is made of plasticmaterial. Furthermore, the object-side surface 441 of the fourth lenselement 440 includes at least one inflection point.

The fifth lens element 450 with negative refractive power has a concaveobject-side surface 451 and a convex image-side surface 452, which areboth aspheric, and the fifth lens element 450 is made of plasticmaterial.

The sixth lens element 460 with positive refractive power has a convexobject-side surface 461 and a convex image-side surface 462 which areboth aspheric, and the object-side surface 461 changes from convex at aparaxial region to concave at a peripheral region. The sixth lenselement 460 is made of plastic material.

The seventh lens element 470 with negative refractive power has aconcave object-side surface 471 and a concave image-side surface 472which are both aspheric, and the seventh lens element 470 is made ofplastic material. The image-side surface 472 changes from concave at aparaxial region to convex at a peripheral region. Furthermore, theimage-side surface 472 of the seventh lens element 470 includes at leastone inflection point.

The IR-cut filter 490 is made of glass and located between the seventhlens element 470 and the image plane 480, and will not affect the focallength of the optical image capturing system.

The detailed optical data of the 4th embodiment are shown in Table 7 andthe aspheric surface data are shown in Table 8 below.

TABLE 7 4th Embodiment f = 4.61 mm, Fno = 2.30, HFOV = 37.5 deg. SurfaceFocal # Curvature Radius Thickness Material Index Abbe # length 0 ObjectPlano Infinity 1 Lens 1    2.389670 (ASP) 0.633 Plastic 1.544 55.9 4.602   46.838100 (ASP) 0.047 3 Lens 2    8.712400 (ASP) 0.240 Plastic 1.64023.3 −15.14 4    4.537300 (ASP) 0.091 5 Ape. Stop Plano 0.208 6 Lens 3−12.471700 (ASP) 0.237 Plastic 1.640 23.3 −26.34 7 −48.317500 (ASP)0.222 8 Lens 4    6.178900 (ASP) 0.462 Plastic 1.544 55.9 8.37 9−16.846700 (ASP) 0.521 10 Lens 5  −1.097580 (ASP) 0.280 Plastic 1.65021.4 −8.13 11  −1.524590 (ASP) 0.035 12 Lens 6    4.355700 (ASP) 0.802Plastic 1.544 55.9 3.20 13  −2.706150 (ASP) 0.504 14 Lens 7  −4.028200(ASP) 0.703 Plastic 1.535 56.3 −2.82 15    2.559930 (ASP) 0.500 16IR-cut filter Plano 0.300 Glass 1.517 64.2 — 17 Plano 0.315 18 ImagePlano — Note: Reference wavelength (d-line) is 587.6 nm.

TABLE 8 Aspheric Coefficients Surface # 1 2 3 4 6 k =  1.57610E+00 0.00000E+00  2.24432E+01 −9.81610E+00  0.00000E+00 A4 = −7.07207E−03−2.87756E−02 −9.04706E−02 −6.10678E−02 −4.44285E−02 A6 = −1.73645E−02 7.01684E−02  1.09158E−01  3.92193E−02 −2.89024E−03 A8 =  2.79532E−02−4.79826E−02 −7.54503E−02 −9.10816E−03  3.45020E−03 A10 = −3.14039E−02−9.04108E−04  9.41003E−03 −1.62587E−02 −1.87971E−02 A12 =  1.74531E−02 1.24907E−02  1.80847E−02  1.36062E−02 A14 = −4.70458E−03 −3.66630E−03−5.00907E−03  1.38208E−03 Surface # 7 8 9 10 11 k =  0.00000E+00−2.96150E+01 −2.00000E+01 −2.26652E+00 −4.54917E+00 A4 = −6.62324E−02−7.68638E−02 −5.17014E−02  1.10874E−01  1.52213E−02 A6 =  2.37827E−02 1.57132E−04 −3.08132E−02 −1.74659E−01 −5.08872E−02 A8 = −3.96313E−03 6.90401E−03  6.97349E−03  9.48529E−02  2.77209E−02 A10 = −1.35674E−02−1.61108E−03  1.31243E−03 −4.06977E−02 −1.11489E−02 A12 = −4.41316E−04−2.05109E−04  1.37104E−02  2.97559E−03 A14 =  3.73746E−04  1.46854E−04−2.37068E−03 −2.24668E−04 Surface # 12 13 14 15 k =  1.18222E+00−4.28114E+00 −1.42975E+00 −1.14325E+01 A4 = −6.34381E−02  7.42374E−03−4.49002E−02 −2.28851E−02 A6 =  2.49561E−02 −8.55673E−03  7.09692E−03 3.88514E−03 A8 = −7.40096E−03  8.95202E−03 −3.08539E−04 −6.48704E−04A10 =  5.43575E−04 −3.66943E−03  1.94081E−05  5.58332E−05 A12 =−2.86123E−05  5.92930E−04  7.86735E−06 −1.82732E−06 A14 =  1.63381E−05−2.99776E−05 −6.29814E−07 −9.15485E−09

In the 4th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of f, Fno, HFOV, V1, V2, CT min, R13,R14, f3, f4, f6, f7, SAG52, CT5, Yc72, Td, FOV, TTL and ImgH are thesame as those stated in the 1st embodiment with corresponding values forthe 4th embodiment, so an explanation in this regard will not beprovided again.

Moreover, these parameters can be calculated from Table 7 and Table 8 asthe following values and satisfy the following relationships:

4th Embodiment f (mm) 4.61 |f/f6| + |f/f7| 3.07 Fno 2.30 f/f7 −1.63 HFOV(deg.) 37.5 SAG52 + CT5 (mm) −0.32 V1-V2 32.6 Yc72/f 0.37 CTmin (mm)0.237 Td/f 1.08 R14/R13 −0.64 FOV (deg.) 75.0 R14/f 0.56 TTL/ImgH 1.67|f/f3| + |f/f4| 0.73

5th Embodiment

FIG. 9 is a schematic view of an optical image capturing systemaccording to the 5th embodiment of the present disclosure. FIG. 10shows, in order from left to right, spherical aberration curves,astigmatic field curves and a distortion curve of the optical imagecapturing system according to the 5th embodiment.

In FIG. 9, the optical image capturing system includes, in order from anobject side to an image side, an aperture stop 500, a first lens element510, a second lens element 520, a third lens element 530, a fourth lenselement 540, a fifth lens element 550, a sixth lens element 560, aseventh lens element 570, an IR-cut filter 590, an image plane 580 andan image sensor 581.

The first lens element 510 with positive refractive power has a convexobject-side surface 511 and a convex image-side surface 512, which areboth aspheric, and the first lens element 510 is made of plasticmaterial.

The second lens element 520 with negative refractive power has a convexobject-side surface 521 and a concave image-side surface 522, which areboth aspheric, and the second lens element 520 is made of plasticmaterial.

The third lens element 530 with positive refractive power has a convexobject-side surface 531 and a convex image-side surface 532, which areboth aspheric, and the third lens element 530 is made of plasticmaterial.

The fourth lens element 540 with positive refractive power has a convexobject-side surface 541 and a concave image-side surface 542, which areboth aspheric, and the fourth lens element 540 is made of plasticmaterial. Furthermore, the fourth lens element 540 includes at least oneinflection point.

The fifth lens element 550 with negative refractive power has a concaveobject-side surface 551 and a convex image-side surface 552, which areboth aspheric, and the fifth lens element 550 is made of plasticmaterial.

The sixth lens element 560 with positive refractive power has a convexobject-side surface 561 and a convex image-side surface 562 which areboth aspheric, and the object-side surface 561 changes from convex at aparaxial region to concave at a peripheral region. The sixth lenselement 560 is made of plastic material.

The seventh lens element 570 with negative refractive power has aconcave object-side surface 571 and a concave image-side surface 572which are both aspheric, and the seventh lens element 570 is made ofplastic material. The image-side surface 572 changes from concave at aparaxial region to convex at a peripheral region. Furthermore, theimage-side surface 572 of the seventh lens element 570 includes at leastone inflection point.

The IR-cut filter 590 is made of glass and located between the seventhlens element 570 and the image plane 580, and will not affect the focallength of the optical image capturing system.

The detailed optical data of the 5th embodiment are shown in Table 9 andthe aspheric surface data are shown in Table 10 below.

TABLE 9 5th Embodiment f = 3.74 mm, Fno = 2.10, HFOV = 38.7 deg. SurfaceFocal # Curvature Radius Thickness Material Index Abbe # length 0 ObjectPlano Infinity 1 Ape. Stop Plano −0.200 2 Lens 1 2.036410 (ASP) 0.498Plastic 1.544 55.9 3.47 3 −23.551600 (ASP) 0.030 4 Lens 2 2.627980 (ASP)0.220 Plastic 1.650 21.4 −7.14 5 1.622050 (ASP) 0.426 6 Lens 3248.664500 (ASP) 0.508 Plastic 1.544 55.9 69.73 7 −44.742700 (ASP) 0.1328 Lens 4 4.625300 (ASP) 0.365 Plastic 1.544 55.9 10.43 9 24.281800 (ASP)0.241 10 Lens 5 −1.596190 (ASP) 0.250 Plastic 1.650 21.4 −8.74 11−2.357310 (ASP) 0.030 12 Lens 6 3.574000 (ASP) 0.825 Plastic 1.544 55.92.53 13 −2.063240 (ASP) 0.457 14 Lens 7 −1.894410 (ASP) 0.320 Plastic1.544 55.9 −2.04 15 2.837640 (ASP) 0.350 16 IR-cut filter Plano 0.145Glass 1.517 64.2 — 17 Plano 0.204 18 Image Plano — Note: Referencewavelength (d-line) is 587 6 nm.

TABLE 10 Aspheric Coefficients Surface # 2 3 4 5 6 k =  2.20625E+00 −1.00000E+00  7.37774E−01 −4.60870E+00 −8.50000E+00 A4 = −1.75513E−02 3.06838E−02 −1.27831E−01 −3.67140E−02 −2.57989E−02 A6 = −3.96576E−02 5.61015E−02  1.53096E−01  9.14770E−02 −1.55297E−02 A8 =  8.70611E−02−1.17110E−01 −1.43188E−01 −1.02582E−01  2.26274E−02 A10 = −1.76322E−01 9.72894E−02 −1.49053E−02  5.13291E−02 −3.91197E−02 A12 =  1.67677E−01−2.38813E−02  1.03153E−01 −1.57919E−02  1.70202E−02 A14 = −7.01622E−02−9.74824E−03 −5.68855E−02  3.40552E−03 Surface # 7 8 9 10 11 k =−1.00000E+00 −1.25015E+01 −1.00000E+00 −3.56188E+00 −1.35942E+01 A4 =−1.05499E−01 −1.38805E−01 −6.34312E−02  2.42110E−01  8.14332E−02 A6 = 3.32319E−02  4.14127E−03 −4.60031E−02 −3.21783E−01 −1.10006E−01 A8 =−1.93231E−02  1.53781E−02  1.16320E−02  2.32868E−01  6.91190E−02 A10 =−7.07693E−03 −1.01486E−02 −2.46831E−03 −1.42663E−01 −3.64787E−02 A12 = 2.21073E−03 −9.20265E−03 −8.59666E−04  5.87983E−02  1.28753E−02 A14 = 4.46565E−03  1.74660E−03 −9.87907E−03 −1.75963E−03 Surface # 12 13 1415 k = −3.39853E+00 −4.40903E+00 −2.12503E+00 −2.00964E+01 A4 =−1.07531E−01 −1.45461E−02 −4.53039E−02 −2.63996E−02 A6 =  4.54702E−02−1.61418E−02  1.65877E−02  6.43803E−03 A8 = −1.84675E−02  2.48627E−02−8.83767E−04 −1.44751E−03 A10 =  2.21076E−03 −1.18993E−02 −8.66834E−05 1.61180E−04 A12 = −2.65924E−04  2.54456E−03 −3.82312E−06 −1.33173E−05A14 =  1.12042E−04 −2.06928E−04  1.23641E−06  6.78805E−07

In the 5th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of f, Fno, HFOV, V1, V2, CT min, R13,R14, f3, f4, f6, f7, SAG52, CT5, Yc72, Td, FOV, TTL and ImgH are thesame as those stated in the 1st embodiment with corresponding values forthe 5th embodiment, so an explanation in this regard will not beprovided again.

Moreover, these parameters can be calculated from Table 9 and Table 10as the following values and satisfy the following relationships:

5th Embodiment f (mm) 3.74 |f/f6| + |f/f7| 3.31 Fno 2.10 f/f7 −1.83 HFOV(deg.) 38.7 SAG52 + CT5 (mm) −0.05 V1-V2 34.5 Yc72/f 0.40 CTmin (mm)0.220 Td/f 1.15 R14/R13 −1.50 FOV (deg.) 77.4 R14/f 0.76 TTL/ImgH 1.62|f/f3| + |f/f4| 0.41

6th Embodiment

FIG. 11 is a schematic view of an optical image capturing systemaccording to the 6th embodiment of the present disclosure. FIG. 12shows, in order from left to right, spherical aberration curves,astigmatic field curves and a distortion curve of the optical imagecapturing system according to the 6th embodiment.

In FIG. 11, the optical image capturing system includes, in order froman object side to an image side, an aperture stop 600, a first lenselement 610, a second lens element 620, a third lens element 630, afourth lens element 640, a fifth lens element 650, a sixth lens element660, a seventh lens element 670, an IR-cut filter 690, an image plane680 and an image sensor 681.

The first lens element 610 with positive refractive power has a convexobject-side surface 611 and a convex image-side surface 612, which areboth aspheric, and the first lens element 610 is made of plasticmaterial.

The second lens element 620 with negative refractive power has a convexobject-side surface 621 and a concave image-side surface 622, which areboth aspheric, and the second lens element 620 is made of plasticmaterial.

The third lens element 630 with negative refractive power has a concaveobject-side surface 631 and a concave image-side surface 632, which areboth aspheric, and the third lens element 630 is made of plasticmaterial.

The fourth lens element 640 with positive refractive power has a convexobject-side surface 641 and a convex image-side surface 642, which areboth aspheric, and the fourth lens element 640 is made of plasticmaterial. Furthermore, the object-side surface 641 of the fourth lenselement 640 includes at least one inflection point.

The fifth lens element 650 with negative refractive power has a concaveobject-side surface 651 and a convex image-side surface 652, which areboth aspheric, and the fifth lens element 650 is made of plasticmaterial.

The sixth lens element 660 with positive refractive power has a concaveobject-side surface 661 and a convex image-side surface 662 which areboth aspheric, and the sixth lens element 660 is made of plasticmaterial.

The seventh lens element 670 with negative refractive power has a convexobject-side surface 671 and a concave image-side surface 672 which areboth aspheric, and the seventh lens element 670 is made of plasticmaterial. The image-side surface 672 changes from concave at a paraxialregion to convex at a peripheral region. Furthermore, the image-sidesurface 672 of the seventh lens element 670 includes at least oneinflection point.

The IR-cut filter 690 is made of glass and located between the seventhlens element 670 and the image plane 680, and will not affect the focallength of the optical image capturing system.

The detailed optical data of the 6th embodiment are shown in Table 11and the aspheric surface data are shown in Table 12 below.

TABLE 11 6th Embodiment f = 5.38 mm, Fno = 2.20, HFOV = 39.1 deg.Surface Focal # Curvature Radius Thickness Material Index Abbe # length0 Object Plano Infinity 1 Ape. Stop Plano −0.240 2 Lens 1 2.999970 (ASP)0.606 Plastic 1.544 55.9 5.29 3 −67.612600 (ASP) 0.072 4 Lens 2 8.567900(ASP) 0.273 Plastic 1.634 23.8 −14.38 5 4.361700 (ASP) 0.509 6 Lens 3−26.055100 (ASP) 0.471 Plastic 1.544 55.9 −18.30 7 16.219900 (ASP) 0.0988 Lens 4 4.863200 (ASP) 0.586 Plastic 1.544 55.9 6.92 9 −15.971000 (ASP)0.637 10 Lens 5 −1.609130 (ASP) 0.330 Plastic 1.634 23.8 −8.17 11−2.520100 (ASP) 0.070 12 Lens 6 −25.286300 (ASP) 0.823 Plastic 1.53556.3 3.27 13 −1.653350 (ASP) 0.051 14 Lens 7 28.203800 (ASP) 1.235Plastic 1.535 56.3 −3.15 15 1.564750 (ASP) 0.900 16 IR-cut filter Plano0.300 Glass 1.517 64.2 — 17 Plano 0.376 18 Image Plano — Note: Referencewavelength (d-line) is 587.6 nm.

TABLE 12 Aspheric Coefficients Surface # 2 3 4 5 6 k =  4.01544E−01−5.00000E+01 −8.42402E+00 −9.30597E+00  3.00000E+00 A4 = −1.56440E−03−3.80636E−02 −8.19776E−02 −4.68550E−02 −1.24630E−02 A6 = −2.89629E−03 4.41253E−02  6.66015E−02  2.79083E−02 −7.20040E−03 A8 =  5.74626E−03−2.40812E−02 −3.05395E−02 −1.33958E−02  6.99479E−04 A10 = −9.82788E−03−1.13343E−03  9.24213E−04  3.07751E−03 −1.24872E−03 A12 =  7.50285E−03 7.58909E−03  5.01905E−03 −1.11147E−03 A14 = −2.25574E−03 −3.29879E−03−2.22159E−03  2.12328E−04 Surface # 7 8 9 10 11 k = −9.69905E+00−2.00000E+01 −3.24011E+00 −1.08216E+00 −2.91816E+00 A4 = −4.82613E−02−2.98065E−02 −6.80002E−03  8.05669E−02  2.11134E−02 A6 =  3.37685E−03−1.29738E−02 −2.28135E−02 −8.91292E−02 −3.01124E−02 A8 = −2.79449E−03 2.81599E−03  3.46632E−03  4.20982E−02  1.24422E−02 A10 = −9.37756E−05−6.72440E−04  2.15464E−07 −1.47389E−02 −3.90392E−03 A12 = −4.96332E−04−1.38855E−04  3.81920E−03  8.23878E−04 A14 =  1.90099E−04  4.01335E−05−4.44578E−04 −6.55653E−05 Surface # 12 13 14 15 k =  5.00000E+00−3.91428E+00 −1.00000E+00 −5.65225E+00 A4 = −3.12302E−02 −2.53693E−02−4.42218E−02 −1.83434E−02 A6 =  1.47040E−02  1.66451E−03  7.06313E−03 2.88292E−03 A8 = −4.37468E−03  4.26941E−03 −2.47434E−04 −3.18087E−04A10 =  3.12703E−04 −1.35527E−03 −2.49118E−05  2.05537E−05 A12 = 1.96691E−05  1.57833E−04 −5.34985E−07 −7.48457E−07 A14 = −9.39014E−07−6.65177E−06  1.89711E−07  1.10386E−08

In the 6th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of f, Fno, HFOV, V1, V2, CT min, R13,R14, f3, f4, f6, f7, SAG52, CT5, Yc72, Td, FOV, TTL and ImgH are thesame as those stated in the 1st embodiment with corresponding values forthe 6th embodiment, so an explanation in this regard will not beprovided again.

Moreover, these parameters can be calculated from Table 11 and Table 12as the following values and satisfy the following relationships:

6th Embodiment f (mm) 5.38 |f/f6| + |f/f7| 3.35 Fno 2.20 f/f7 −1.71 HFOV(deg.) 39.1 SAG52 + CT5 (mm) −0.41 V1-V2 32.1 Yc72/f 0.48 CTmin (mm)0.273 Td/f 1.07 R14/R13 0.06 FOV (deg.) 78.2 R14/f 0.29 TTL/ImgH 1.61|f/f3| + |f/f4| 1.07

7th Embodiment

FIG. 13 is a schematic view of an optical image capturing systemaccording to the 7th embodiment of the present disclosure. FIG. 14shows, in order from left to right, spherical aberration curves,astigmatic field curves and a distortion curve of the optical imagecapturing system according to the 7th embodiment.

In FIG. 13, the optical image capturing system includes, in order froman object side to an image side, a first lens element 710, an aperturestop 700, a second lens element 720, a third lens element 730, a fourthlens element 740, a fifth lens element 750, a sixth lens element 760, aseventh lens element 770, an IR-cut filter 790, an image plane 780 andan image sensor 781.

The first lens element 710 with positive refractive power has a convexobject-side surface 711 and a convex image-side surface 712, which areboth aspheric, and the first lens element 710 is made of plasticmaterial.

The second lens element 720 with negative refractive power has a concaveobject-side surface 721 and a concave image-side surface 722, which areboth aspheric, and the second lens element 720 is made of plasticmaterial.

The third lens element 730 with negative refractive power has a concaveobject-side surface 731 and a convex image-side surface 732, which areboth aspheric, and the third lens element 730 is made of plasticmaterial.

The fourth lens element 740 with positive refractive power has a convexobject-side surface 741 and a convex image-side surface 742, which areboth aspheric, and the fourth lens element 740 is made of plasticmaterial. Furthermore, the object-side surface 741 of the fourth lenselement 740 includes at least one inflection point.

The fifth lens element 750 with negative refractive power has a concaveobject-side surface 751 and a convex image-side surface 752, which areboth aspheric, and the fifth lens element 750 is made of plasticmaterial.

The sixth lens element 760 with positive refractive power has a convexobject-side surface 761 and a convex image-side surface 762 which areboth aspheric, and the object-side surface 761 changes from convex at aparaxial region to concave at a peripheral region. The sixth lenselement 760 is made of plastic material.

The seventh lens element 770 with negative refractive power has aconcave object-side surface 771 and a concave image-side surface 772which are both aspheric, and the seventh lens element 770 is made ofplastic material. The image-side surface 772 changes from concave at aparaxial region to convex at a peripheral region. Furthermore, theimage-side surface 772 of the seventh lens element 770 includes at leastone inflection point.

The IR-cut filter 790 is made of glass and located between the seventhlens element 770 and the image plane 780, and will not affect the focallength of the optical image capturing system.

The detailed optical data of the 7th embodiment are shown in Table 13and the aspheric surface data are shown in Table 14 below.

TABLE 13 7th Embodiment f = 4.70 mm, Fno = 2.05, HFOV = 39.9 deg.Surface Focal # Curvature Radius Thickness Material Index Abbe # length0 Object Plano Infinity 1 Lens 1 2.552000 (ASP) 0.644 Plastic 1.544 55.94.51 2 −59.234700 (ASP) −0.019 3 Ape. Stop Plano 0.087 4 Lens 2−36.697200 (ASP) 0.271 Plastic 1.650 21.4 −13.48 5 11.539200 (ASP) 0.4436 Lens 3 −9.405600 (ASP) 0.326 Plastic 1.544 55.9 −20.22 7 −65.634000(ASP) 0.074 8 Lens 4 5.508100 (ASP) 0.488 Plastic 1.544 55.9 8.43 9−26.548500 (ASP) 0.512 10 Lens 5 −1.455840 (ASP) 0.300 Plastic 1.65021.4 −9.21 11 −2.080300 (ASP) 0.035 12 Lens 6 5.526900 (ASP) 1.196Plastic 1.544 55.9 2.63 13 −1.781640 (ASP) 0.381 14 Lens 7 −3.779400(ASP) 0.450 Plastic 1.530 55.8 −2.29 15 1.864430 (ASP) 0.700 16 IR-cutfilter Plano 0.200 Glass 1.517 64.2 — 17 Plano 0.316 18 Image Plano —Note: Reference wavelength (d-line) is 587.6 nm.

TABLE 14 Aspheric Coefficients Surface # 1 2 4 5 6 k =  1.24996E+00−5.00000E+01 −5.00000E+01 −5.00000E+01 −1.47280E+01 A4 = −6.55257E−03−5.28204E−02 −8.73850E−02 −5.59195E−02 −4.28602E−02 A6 = −1.77310E−02 7.30552E−02  1.14595E−01  5.56109E−02 −1.89061E−02 A8 =  3.02431E−02−4.28443E−02 −6.87772E−02 −3.99650E−02  6.43553E−03 A10 = −3.30032E−02−2.94210E−03  4.82093E−03  1.66795E−02 −4.33981E−03 A12 =  1.72237E−02 1.22346E−02  1.37324E−02 −3.82242E−03 −5.02596E−05 A14 = −4.03478E−03−3.93520E−03 −4.15965E−03  1.09866E−03 −4.36603E−09 Surface # 7 8 9 1011 k = −5.00000E+01 −5.00000E+01  3.00000E+00 −2.11829E+00 −7.16778E+00A4 = −8.75294E−02 −5.93688E−02 −3.06406E−02  1.22411E−01  2.60299E−02 A6=  1.95170E−02 −8.93391E−03 −3.18133E−02 −1.71303E−01 −5.34072E−02 A8 =−1.44992E−02  5.53314E−03  7.75816E−03  9.38898E−02  2.73223E−02 A10 = 2.16819E−03 −1.19246E−03  1.04262E−03 −4.15955E−02 −1.11730E−02 A12 = 4.65110E−04 −1.16400E−03 −4.08272E−04  1.36852E−02  2.93311E−03 A14 =−4.14156E−04  5.27523E−04 −4.78330E−05 −1.99216E−03 −2.75785E−04 Surface# 12 13 14 15 k =  2.13050E+00 −4.68712E+00 −1.92871E+01 −7.18320E+00 A4= −5.78245E−02 −1.04836E−02 −5.71189E−02 −2.59797E−02 A6 =  2.40501E−02−7.74761E−03  6.98751E−03  4.42064E−03 A8 = −7.84867E−03  9.20324E−03−1.87842E−04 −5.99594E−04 A10 =  5.33907E−04 −3.68429E−03  5.07686E−06 5.25450E−05 A12 = −1.75044E−05  5.84664E−04  1.90670E−06 −2.78886E−06A14 =  1.26961E−05 −3.16505E−05 −2.77147E−07  6.51816E−08

In the 7th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of f, Fno, HFOV, V1, V2, CT min, R13,R14, f3, f4, f6, f7, SAG52, CT5, Yc72, Td, FOV, TTL and ImgH are thesame as those stated in the 1st embodiment with corresponding values forthe 6th embodiment, so an explanation in this regard will not beprovided again.

Moreover, these parameters can be calculated from Table 13 and Table 14as the following values and satisfy the following relationships:

7th Embodiment f (mm) 4.70 |f/f6| + |f/f7| 3.84 Fno 2.05 f/f7 −2.05 HFOV(deg.) 39.9 SAG52 + CT5 (mm) −0.32 V1-V2 34.5 Yc72/f 0.42 CTmin (mm)0.271 Td/f 1.10 R14/R13 −0.49 FOV (deg.) 79.8 R14/f 0.40 TTL/ImgH 1.58|f/f3| + |f/f4| 0.79

8th Embodiment

FIG. 15 is a schematic view of an optical image capturing systemaccording to the 8th embodiment of the present disclosure. FIG. 16shows, in order from left to right, spherical aberration curves,astigmatic field curves and a distortion curve of the optical imagecapturing system according to the 8th embodiment.

In FIG. 15, the optical image capturing system includes, in order froman object side to an image side, a first lens element 810, an aperturestop 800, a second lens element 820, a third lens element 830, a fourthlens element 840, a fifth lens element 850, a sixth lens element 860, aseventh lens element 870, an IR-cut filter 890, an image plane 880 andan image sensor 881.

The first lens element 810 with positive refractive power has a convexobject-side surface 811 and a concave image-side surface 812, which areboth aspheric, and the first lens element 810 is made of plasticmaterial.

The second lens element 820 with negative refractive power has a convexobject-side surface 821 and a concave image-side surface 822, which areboth aspheric, and the second lens element 820 is made of plasticmaterial.

The third lens element 830 with positive refractive power has a concaveobject-side surface 831 and a convex image-side surface 832, which areboth aspheric, and the third lens element 830 is made of plasticmaterial.

The fourth lens element 840 with positive refractive power has a concaveobject-side surface 841 and a convex image-side surface 842, which areboth aspheric, and the fourth lens element 840 is made of plasticmaterial. Furthermore, the object-side surface 841 of the fourth lenselement 840 includes at least one inflection point.

The fifth lens element 850 with negative refractive power has a concaveobject-side surface 851 and a convex image-side surface 852, which areboth aspheric, and the fifth lens element 850 is made of plasticmaterial.

The sixth lens element 860 with positive refractive power has a convexobject-side surface 861 and a convex image-side surface 862 which areboth aspheric, and the sixth lens element 860 is made of plasticmaterial. The object-side surface 861 changes from convex at a paraxialregion to concave at a peripheral region.

The seventh lens element 870 with negative refractive power has aconcave object-side surface 871 and a concave image-side surface 872which are both aspheric, and the seventh lens element 870 is made ofplastic material. The image-side surface 872 changes from concave at aparaxial region to convex at a peripheral region. Furthermore, theimage-side surface 872 of the seventh lens element 870 comprises atleast one inflection point.

The IR-cut filter 890 is made of glass and located between the seventhlens element 870 and the image plane 880, and will not affect the focallength of the optical image capturing system.

The detailed optical data of the 8th embodiment are shown in Table 15and the aspheric surface data are shown in Table 16 below.

TABLE 15 8th Embodiment f = 5.08 mm, Fno = 2.20, HFOV = 37.5 deg.Surface Focal # Curvature Radius Thickness Material Index Abbe # length0 Object Plano Infinity 1 Lens 1 2.106050 (ASP) 0.727 Plastic 1.530 55.84.48 2 16.377300 (ASP) 0.058 3 Ape. Stop Plano 0.042 4 Lens 2 9.396400(ASP) 0.240 Plastic 1.650 21.4 −11.76 5 4.171200 (ASP) 0.447 6 Lens 3−6.904700 (ASP) 0.449 Plastic 1.530 55.8 14.72 7 −3.745600 (ASP) 0.050 8Lens 4 −237.531700 (ASP) 0.364 Plastic 1.530 55.8 279.46 9 −91.271700(ASP) 0.476 10 Lens 5 −1.264930 (ASP) 0.300 Plastic 1.650 21.4 −10.79 11−1.687700 (ASP) 0.090 12 Lens 6 4.716500 (ASP) 0.612 Plastic 1.530 55.84.50 13 −4.604000 (ASP) 0.936 14 Lens 7 −4.091400 (ASP) 0.460 Plastic1.530 55.8 −3.60 15 3.720800 (ASP) 0.500 16 IR-cut filter Plano 0.200Glass 1.517 64.2 — 17 Plano 0.294 18 image Plano — Note: Referencewavelength (d-line) is 587 6 nm.

TABLE 16 Aspheric Coefficients Surface # 1 2 4 5 6 k =  8.90178E−01−3.61096E−01 −3.83218E+01 −9.14738E+00 −1.98164E+01 A4 = −4.95272E−03−4.57358E−02 −9.83371E−02 −5.31829E−02 −3.94999E−02 A6 = −1.44552E−02 5.29770E−02  1.11966E−01  6.97942E−02 −1.95451E−02 A8 =  2.49942E−02−3.15473E−02 −6.31640E−02 −3.75623E−02  3.72584E−04 A10 = −2.93336E−02 2.41746E−03  7.64209E−03  1.03095E−02 −8.46446E−03 A12 =  1.61703E−02 4.39750E−03  1.24249E−02  5.48284E−04  2.58665E−03 A14 = −4.07081E−03−1.46693E−03 −4.15965E−03  1.09866E−03 −1.17926E−08 Surface # 7 8 9 1011 k = −2.56555E+00  3.00000E+00 −1.03183E+00 −1.76852E+00 −3.42595E+00A4 = −6.18956E−02 −1.04186E−01 −5.10015E−02  1.55550E−01  3.32805E−02 A6=  1.87497E−02  4.15342E−03 −2.98507E−02 −1.66325E−01 −5.00058E−02 A8 =−1.53337E−02  8.38758E−03  9.54388E−03  9.12039E−02  2.70150E−02 A10 = 2.17052E−03  8.77193E−04  1.30623E−03 −4.24285E−02 −1.14852E−02 A12 = 1.95878E−03 −4.85466E−04 −4.86555E−04  1.37199E−02  2.89303E−03 A14 =−4.05129E−04  1.22823E−05  8.10409E−06 −1.81567E−03 −2.38389E−04 Surface# 12 13 14 15 k = −6.58821E+00 −1.61451E+01 −2.62115E+00 −2.11643E+01 A4= −6.25392E−02 −8.14410E−03 −4.42315E−02 −2.19259E−02 A6 =  2.57139E−02−7.65552E−03  7.71517E−03  3.60828E−03 A8 = −7.55747E−03  9.57982E−03−2.57484E−04 −5.48595E−04 A10 =  9.90623E−04 −3.64717E−03 −1.43974E−05 5.09581E−05 A12 = −1.45805E−04  5.80279E−04  7.50606E−07 −3.19315E−06A14 =  1.30850E−05 −3.36611E−05 −2.46540E−08  1.00041E−07

In the 8th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of f, Fno, HFOV, V1, V2, CT min, R13,R14, f3, f4, f6, f7, SAG52, CT5, Yc72, Td, FOV, TTL and ImgH are thesame as those stated in the 1st embodiment with corresponding values forthe 8th embodiment, so an explanation in this regard will not beprovided again.

Moreover, these parameters can be calculated from Table 15 and Table 16as the following values and satisfy the following relationships:

8th Embodiment f (mm) 5.08 |f/f6| + |f/f7| 2.54 Fno 2.20 f/f7 −1.41 HFOV(deg.) 37.5 SAG52 + CT5 (mm) −0.38 V1-V2 34.4 Yc72/f 0.30 CTmin (mm)0.240 Td/f 1.03 R14/R13 −0.91 FOV (deg.) 75.0 R14/f 0.73 TTL/ImgH 1.54|f/f3| + |f/f4| 0.36

9th Embodiment

FIG. 17 is a schematic view of an optical image capturing systemaccording to the 9th embodiment of the present disclosure. FIG. 18shows, in order from left to right, spherical aberration curves,astigmatic field curves and a distortion curve of the optical imagecapturing system according to the 9th embodiment.

In FIG. 17, the optical image capturing system includes, in order froman object side to an image side, a first lens element 910, an aperturestop 900, a second lens element 920, a third lens element 930, a fourthlens element 940, a fifth lens element 950, a sixth lens element 960, aseventh lens element 970, an IR-cut filter 990, an image plane 980 andan image sensor 981.

The first lens element 910 with positive refractive power has a convexobject-side surface 911 and a concave image-side surface 912, which areboth aspheric, and the first lens element 910 is made of plasticmaterial.

The second lens element 920 with negative refractive power has a convexobject-side surface 921 and a concave image-side surface 922, which areboth aspheric, and the second lens element 920 is made of plasticmaterial.

The third lens element 930 with positive refractive power has a concaveobject-side surface 931 and a convex image-side surface 932, which areboth aspheric, and the third lens element 930 is made of plasticmaterial.

The fourth lens element 940 with negative refractive power has a concaveobject-side surface 941 and a concave image-side surface 942, which areboth aspheric, and the fourth lens element 940 is made of plasticmaterial. Furthermore, the fourth lens element 940 includes at least oneinflection point.

The fifth lens element 950 with negative refractive power has a concaveobject-side surface 951 and a convex image-side surface 952, which areboth aspheric, and the fifth lens element 950 is made of plasticmaterial.

The sixth lens element 960 with positive refractive power has a convexobject-side surface 961 and a convex image-side surface 962 which areboth aspheric, and the sixth lens element 960 is made of plasticmaterial. The object-side surface 961 changes from convex at a paraxialregion to concave at a peripheral region.

The seventh lens element 970 with negative refractive power has aconcave object-side surface 971 and a concave image-side surface 972which are both aspheric, and the seventh lens element 970 is made ofplastic material. The image-side surface 972 changes from concave at aparaxial region to convex at a peripheral region. Furthermore, theimage-side surface 972 of the seventh lens element 970 includes at leastone inflection point.

The IR-cut filter 990 is made of glass and located between the seventhlens element 970 and the image plane 980, and will not affect the focallength of the optical image capturing system.

The detailed optical data of the 9th embodiment are shown in Table 17and the aspheric surface data are shown in Table 18 below.

TABLE 17 9th Embodiment f = 5.19 mm, Fno = 2.20, HFOV = 36.9 deg.Surface Focal # Curvature Radius Thickness Material Index Abbe # length0 Object Plano Infinity 1 Lens 1 2.016660 (ASP) 0.778 Plastic 1.530 55.84.30 2 15.131600 (ASP) 0.073 3 Ape. Stop Plano 0.030 4 Lens 2 6.870700(ASP) 0.240 Plastic 1.650 21.4 −10.88 5 3.436500 (ASP) 0.396 6 Lens 3−11.287400 (ASP) 0.443 Plastic 1.530 55.8 18.44 7 −5.309200 (ASP) 0.1318 Lens 4 −75.949000 (ASP) 0.275 Plastic 1.614 25.6 −28.98 9 23.276000(ASP) 0.512 10 Lens 5 −1.507460 (ASP) 0.306 Plastic 1.583 30.2 −30.36 11−1.770930 (ASP) 0.090 12 Lens 6 5.383000 (ASP) 0.640 Plastic 1.530 55.84.20 13 −3.638100 (ASP) 0.580 14 Lens 7 −5.525900 (ASP) 0.460 Plastic1.514 56.8 −3.47 15 2.704660 (ASP) 0.500 16 IR-cut filter Plano 0.200Glass 1.517 64.2 — 17 Plano 0.574 18 Image Plano — Note: Referencewavelength (d-line) is 587.6 nm.

TABLE 18 Aspheric Coefficients Surface # 1 2 4 5 6 k =  7.06581E−01 1.43308E+00 −1.70988E+01 −6.76507E+00 −5.00000E+01 A4 = −5.20571E−03−4.45093E−02 −9.83870E−02 −5.12300E−02 −2.97615E−02 A6 = −1.43494E−02 5.06872E−02  1.09598E−01  6.89375E−02 −1.00827E−02 A8 =  2.44478E−02−2.98149E−02 −5.98233E−02 −3.70644E−02 −4.95992E−04 A10 = −2.85733E−02 4.01557E−03  7.18376E−03  1.10013E−02 −1.06053E−02 A12 =  1.53650E−02 2.22862E−03  1.16900E−02  6.95250E−04  5.81239E−03 A14 = −3.67572E−03−7.58506E−04 −4.15965E−03  1.09866E−03 −1.37340E−08 Surface # 7 8 9 1011 k = −3.60203E+00  3.00000E+00  6.00756E−01 −1.33044E+00 −1.94664E+00A4 = −5.98240E−02 −1.39760E−01 −7.64183E−02  1.60132E−01  1.88715E−02 A6=  1.66271E−02 −5.04354E−03 −2.27892E−02 −1.65334E−01 −4.82161E−02 A8 =−1.72316E−02  7.79298E−03  1.09834E−02  8.79958E−02  2.72834E−02 A10 = 1.09129E−03  1.30186E−03  8.03602E−04 −4.25563E−02 −1.16685E−02 A12 = 2.17693E−03 −2.58667E−04 −4.59790E−04  1.38851E−02  2.87178E−03 A14 =−2.13849E−04  3.54222E−04  1.04242E−04 −1.79214E−03 −1.95884E−04 Surface# 12 13 14 15 k = −3.16527E+01 −1.32837E+01 −2.00000E+01 −1.02392E+01 A4= −7.21293E−02 −7.69920E−03 −4.22026E−02 −2.47789E−02 A6 =  2.94689E−02−8.05827E−03  7.35719E−03  3.72634E−03 A8 = −7.19999E−03  9.55590E−03−2.91687E−04 −5.55536E−04 A10 =  8.26684E−04 −3.64828E−03 −1.57467E−05 5.20424E−05 A12 = −1.98203E−04  5.79269E−04  8.72367E−07 −3.10945E−06A14 =  2.72684E−05 −3.34003E−05  1.39566E−08  9.28903E−08

In the 9th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of f, Fno, HFOV, V1, V2, CT min, R13,R14, f3, f4, f6, f7, SAG52, CT5, Yc72, Td, FOV, TTL and ImgH are thesame as those stated in the 1st embodiment with corresponding values forthe 9th embodiment, so an explanation in this regard will not beprovided again.

Moreover, these parameters can be calculated from Table 17 and Table 18as the following values and satisfy the following relationships:

9th Embodiment f (mm) 5.19 |f/f6| + |f/f7| 2.73 Fno 2.20 f/f7 −1.50 HFOV(deg.) 36.9 SAG52 + CT5 (mm) −0.48 V1-V2 34.4 Yc72/f 0.32 CTmin (mm)0.240 Td/f 0.95 R14/R13 −0.49 FOV (deg.) 73.8 R14/f 0.52 TTL/ImgH 1.54|f/f3| + |f/f4| 0.46

10th Embodiment

FIG. 19 is a schematic view of an optical image capturing systemaccording to the 10th embodiment of the present disclosure. FIG. 20shows, in order from left to right, spherical aberration curves,astigmatic field curves and a distortion curve of the optical imagecapturing system according to the 10th embodiment.

In FIG. 19, the optical image capturing system includes, in order froman object side to an image side, an aperture stop 1000, a first lenselement 1010, a second lens element 1020, a third lens element 1030, afourth lens element 1040, a fifth lens element 1050, a sixth lenselement 1060, a seventh lens element 1070, an IR-cut filter 1090, animage plane 1080 and an image sensor 1081.

The first lens element 1010 with positive refractive power has a convexobject-side surface 1011 and a concave image-side surface 1012, whichare both aspheric, and the first lens element 1010 is made of glassmaterial.

The second lens element 1020 with negative refractive power has aconcave object-side surface 1021 and a concave image-side surface 1022,which are both aspheric, and the second lens element 1020 is made ofplastic material.

The third lens element 1030 with negative refractive power has a convexobject-side surface 1031 and a concave image-side surface 1032, whichare both aspheric, and the third lens element 1030 is made of plasticmaterial.

The fourth lens element 1040 with positive refractive power has a convexobject-side surface 1041 and a concave image-side surface 1042, whichare both aspheric, and the fourth lens element 1040 is made of plasticmaterial. Furthermore, the fourth lens element 1040 includes at leastone inflection point.

The fifth lens element 1050 with negative refractive power has a concaveobject-side surface 1051 and a convex image-side surface 1052, which areboth aspheric, and the fifth lens element 1050 is made of plasticmaterial.

The sixth lens element 1060 with positive refractive power has a convexobject-side surface 1061 and a convex image-side surface 1062 which areboth aspheric, and the sixth lens element 1060 is made of plasticmaterial. The object-side surface 1061 changes from convex at a paraxialregion to concave at a peripheral region.

The seventh lens element 1070 with negative refractive power has aconvex object-side surface 1071 and a concave image-side surface 1072which are both aspheric, and the image-side surface 1072 changes fromconcave at a paraxial region to convex at a peripheral region. Theseventh lens element 1070 is made of plastic material. Furthermore, theimage-side surface 1072 of the seventh lens element 1070 includes atleast one inflection point.

The IR-cut filter 1090 is made of glass and located between the seventhlens element 1070 and the image plane 1080, and will not affect thefocal length of the optical image capturing system.

The detailed optical data of the 10th embodiment are shown in Table 19and the aspheric surface data are shown in Table 20 below.

TABLE 19 10th Embodiment f = 4.88 mm, Fno = 2.15, HFOV = 39.6 deg.Surface Focal # Curvature Radius Thickness Material Index Abbe # length0 Object Plano Infinity 1 Ape. Stop Plano −0.238 2 Lens 1 2.545850 (ASP)0.566 Glass 1.566 61.1 5.15 3 18.457300 (ASP) 0.254 4 Lens 2 −67.453600(ASP) 0.270 Plastic 1.640 23.3 −9.77 5 6.896600 (ASP) 0.238 6 Lens 314.079200 (ASP) 0.398 Plastic 1.544 55.9 −28.08 7 7.254400 (ASP) 0.050 8Lens 4 3.358300 (ASP) 0.391 Plastic 1.544 55.9 7.12 9 24.159000 (ASP)0.620 10 Lens 5 −2.101660 (ASP) 0.300 Plastic 1.640 23.3 −11.56 11−3.099900 (ASP) 0.070 12 Lens 6 10.558400 (ASP) 0.838 Plastic 1.544 55.93.12 13 −1.967170 (ASP) 0.402 14 Lens 7 100.000000 (ASP) 0.613 Plastic1.530 55.8 −2.72 15 1.418470 (ASP) 0.840 16 IR-cut filter Plano 0.250Glass 1.517 64.2 — 17 Plano 0.278 18 Image Plano — Note: Referencewavelength (d-line) is 587.6 nm.

TABLE 20 Aspheric Coefficients Surface # 2 3 4 5 6 k =  2.61987E−01 3.00000E+00  0.00000E+00 −9.20422E+01 −2.83188E+00 A4 = −3.63978E−03−2.79071E−02 −7.95060E−02 −5.54800E−02 −2.96051E−02 A6 = −3.09516E−03 3.95639E−02  9.01905E−02  5.13235E−02 −1.77213E−02 A8 =  1.03902E−02−3.70198E−02 −5.81773E−02 −2.76094E−02  7.58927E−03 A10 = −1.97431E−02−8.45516E−05  5.72088E−03  7.40557E−03 −6.43235E−04 A12 =  1.60070E−02 1.62255E−02  1.07101E−02 −2.37428E−03 A14 = −5.53229E−03 −8.08778E−03−5.44790E−03  5.20350E−04 Surface # 7 8 9 10 11 k =  6.22360E−01−1.95196E+01 −2.00000E+01 −1.44416E+00 −7.00358E+00 A4 = −5.49905E−02−3.10114E−02 −2.61120E−02  1.05443E−01  2.78749E−02 A6 =  1.85625E−03−1.91982E−02 −2.68191E−02 −1.26072E−01 −4.36409E−02 A8 = −6.56285E−03 5.12567E−03  8.18832E−03  6.70012E−02  2.00423E−02 A10 =  1.09821E−03−7.72213E−04  2.09360E−04 −2.77086E−02 −7.25670E−03 A12 = −1.17845E−03−3.85316E−04  8.16094E−03  1.75013E−03 A14 =  4.68650E−04  1.37346E−04−1.05290E−03 −1.58397E−04 Surface # 12 13 14 15 k =  2.44764E+00−7.56032E+00 −1.00000E+00 −5.83393E+00 A4 = −4.43411E−02 −2.49270E−02−7.10947E−02 −2.94847E−02 A6 =  2.32256E−02  1.35465E−03  1.19834E−02 5.04950E−03 A8 = −6.70400E−03  6.97483E−03 −2.89486E−04 −5.66326E−04A10 =  6.22040E−04 −2.49613E−03 −4.57341E−05  3.60309E−05 A12 = 3.43416E−05  3.37937E−04 −2.10360E−06 −1.42065E−06 A14 = −8.28303E−06−1.71240E−05  3.65101E−07  2.88039E−08

In the 10th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of f, Fno, HFOV, V1, V2, CT min, R13,R14, f3, f4, f6, f7, SAG52, CT5, Yc72, Td, FOV, TTL and ImgH are thesame as those stated in the 1st embodiment with corresponding values forthe 9th embodiment, so an explanation in this regard will not beprovided again.

Moreover, these parameters can be calculated from Table 19 and Table 20as the following values and satisfy the following relationships:

10th Embodiment f (mm) 4.88 |f/f6| + |f/f7| 3.36 Fno 2.15 f/f7 −1.79HFOV (deg.) 39.6 SAG52 + CT5 (mm) −0.23 V1-V2 37.8 Yc72/f 0.43 CTmin(mm) 0.270 Td/f 1.03 R14/R13 0.01 FOV (deg.) 79.2 R14/f 0.29 TTL/ImgH1.54 |f/f3| + |f/f4| 0.86

It will be apparent to those skilled in the art that variousmodifications and variations can be made to the structure of the presentinvention without departing from the scope or spirit of the invention.In view of the foregoing, it is intended that the present inventioncover modifications and variations of this invention provided they fallwithin the scope of the following claims.

What is claimed is:
 1. An optical image capturing system comprisingseven lens elements, the seven lens elements being, in order from anobject side to an image side, a first lens element, a second lenselement, a third lens element, a fourth lens element, a fifth lenselement, a sixth lens element, and a seventh lens element; wherein eachof the first lens element, the second lens element, the third lenselement, the fourth lens element, the fifth lens element, the sixth lenselement and the seventh lens element has an object-side surface facingtoward the object side, and an image-side surface facing toward theimage side; wherein the fourth lens element has positive refractivepower; at least one of the object-side surface and the image-sidesurface of the sixth lens element is aspheric; the seventh lens elementhas the image-side surface being concave in a paraxial region thereof,the image-side surface of the seventh lens element is aspheric, and theimage-side surface of the seventh lens element has a concave-to-convexshape change from the paraxial region thereof to an off-axis regionthereof; wherein a curvature radius of the object-side surface of theseventh lens element is R13, a curvature radius of the image-sidesurface of the seventh lens element is R14, a focal length of theoptical image capturing system is f, and the following relationships aresatisfied:0.1<R14/f<1.0; and−5.0<R14/R13<1.0.
 2. The optical image capturing system of claim 1,wherein the image-side surface of the first lens element is concave in aparaxial region thereof; at least one of the object-side surface and theimage-side surface of each of the third lens element, the fourth lenselement, the fifth lens element and the sixth lens element is aspheric.3. The optical image capturing system of claim 1, wherein theobject-side surface of the second lens element is convex in a paraxialregion thereof and the image-side surface of the second lens element isconcave in a paraxial region thereof.
 4. The optical image capturingsystem of claim 1, wherein the object-side surface of the third lenselement is concave in a paraxial region thereof and the image-sidesurface of the third lens element is convex in a paraxial regionthereof.
 5. The optical image capturing system of claim 1, wherein theobject-side surface of the fourth lens element is convex in a paraxialregion thereof and the image-side surface of the fourth lens element isconvex in a paraxial region thereof.
 6. The optical image capturingsystem of claim 1, wherein the object-side surface of the seventh lenselement is convex in a paraxial region thereof.
 7. The optical imagecapturing system of claim 1, wherein the fifth lens element has negativerefractive power; the sixth lens element has positive refractive power;the seventh lens element has negative refractive power.
 8. The opticalimage capturing system of claim 1, wherein the curvature radius of theobject-side surface of the seventh lens element is R13, the curvatureradius of the image-side surface of the seventh lens element is R14, andthe following relationship is satisfied:−2.0<R14/R13<0.5.
 9. The optical image capturing system of claim 1,wherein there is an air gap between each of adjacent lens elements ofthe seven lens elements; the focal length of the optical image capturingsystem is f, a focal length of the third lens element is f3, a focallength of the fourth lens element is f4, and the following relationshipis satisfied:|f/f3|+|f/f4|<1.0.
 10. The optical image capturing system of claim 1,wherein the second lens element, the third lens element, the fourth lenselement, the fifth lens element, the sixth lens element and the seventhlens element are made of plastic material; the focal length of theoptical image capturing system is f, a vertical distance from a criticalpoint on the image-side surface of the seventh lens element to an axialvertex on the image-side surface of the seventh lens element is Yc72,and the following relationship is satisfied:0.1<Yc72/f<0.9.
 11. The optical image capturing system of claim 1,wherein a central thickness of the sixth lens element is greater than acentral thickness of the seventh lens element.
 12. The optical imagecapturing system of claim 1, wherein an absolute value of a curvatureradius of the object-side surface of the sixth lens element is greaterthan an absolute value of the curvature radius of the image-side surfaceof the seventh lens element.
 13. An optical image capturing systemcomprising seven lens elements, the seven lens elements being, in orderfrom an object side to an image side, a first lens element, a secondlens element, a third lens element, a fourth lens element, a fifth lenselement, a sixth lens element, and a seventh lens element; wherein eachof the first lens element, the second lens element, the third lenselement, the fourth lens element, the fifth lens element, the sixth lenselement and the seventh lens element has an object-side surface facingtoward the object side, and an image-side surface facing toward theimage side; wherein the first lens element has the image-side surfacebeing concave in a paraxial region thereof; at least one of theobject-side surface and the image-side surface of the sixth lens elementis aspheric; the seventh lens element has the image-side surface beingconcave in a paraxial region thereof, the image-side surface of theseventh lens element is aspheric, and the image-side surface of theseventh lens element has a concave-to-convex shape change from theparaxial region thereof to an off-axis region thereof; wherein acurvature radius of the image-side surface of the seventh lens elementis R14, a focal length of the optical image capturing system is f, anAbbe number of the first lens element is V1, an Abbe number of thesecond lens element is V2, and the following relationships aresatisfied:0.1<R14/f<1.0; and28<V1−V2<42.
 14. The optical image capturing system of claim 13, whereinthe object-side surface of the second lens element is convex in aparaxial region thereof and the image-side surface of the second lenselement is concave in a paraxial region thereof.
 15. The optical imagecapturing system of claim 13, wherein the object-side surface of theseventh lens element is convex in a paraxial region thereof.
 16. Theoptical image capturing system of claim 13, wherein the object-sidesurface of the sixth lens element has a convex-to-concave shape changefrom a paraxial region thereof to an off-axis region thereof.
 17. Theoptical image capturing system of claim 13, wherein the third lenselement has positive refractive power; at least one of the object-sidesurface and the image-side surface of each of the third lens element,the fourth lens element, the fifth lens element and the sixth lenselement is aspheric.
 18. The optical image capturing system of claim 13,wherein the sixth lens element has positive refractive power; theseventh lens element has negative refractive power.
 19. The opticalimage capturing system of claim 13, wherein the Abbe number of the firstlens element is V1, the Abbe number of the second lens element is V2,and the following relationship is satisfied:32.1≤V1−V2<42.
 20. The optical image capturing system of claim 13,wherein a maximal field of view of the optical image capturing system isFOV, and the following relationship is satisfied:72 degrees<FOV<95 degrees.
 21. The optical image capturing system ofclaim 13, wherein the fifth lens element, the sixth lens element and theseventh lens element are made of plastic material; the focal length ofthe optical image capturing system is f, a focal length of the thirdlens element is f3, a focal length of the fourth lens element is f4, andthe following relationship is satisfied:|f/f3|+|f/f4|<1.0.
 22. The optical image capturing system of claim 13,wherein a minimum central thickness of a lens element among the sevenlens elements of the optical image capturing system is CT min, and thefollowing relationship is satisfied:0.10 mm<CT min<0.30 mm.
 23. The optical image capturing system of claim13, wherein there is an air gap between each of adjacent lens elementsof the seven lens elements; a central thickness of the sixth lenselement is a maximum among central thicknesses of the seven lenselements
 24. The optical image capturing system of claim 13, wherein anabsolute value of a curvature radius of the object-side surface of thesixth lens element is greater than an absolute value of the curvatureradius of the image-side surface of the seventh lens element.